Eagle Valley Hydrographic Basin 8-104
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STATE OF NEVADA DEPARTMENT OF CONSERVATION AND NATURAL RESOURCES DIVISION OF WATER RESOURCES JASON KING, P.E. STATE ENGINEER EAGLE VALLEY HYDROGRAPHIC BASIN 8-104 GROUNDWATER PUMPAGE INVENTORY WATER YEAR 2016 Prepared by: Michael Randall TABLE OF CONTENTS Page ABSTRACT .................................................................................................................................... 1 HYDROGRAPHIC BASIN SUMMARY ...................................................................................... 2 PURPOSE AND SCOPE ................................................................................................................ 3 DESCRIPTION OF THE STUDY AREA ..................................................................................... 3 GROUNDWATER LEVELS ......................................................................................................... 3 METHODS TO ESTIMATE PUMPAGE ...................................................................................... 4 MUNICIPAL SUPPLY IN ADDITION TO EAGLE VALLEY GROUNDWATER ................... 5 TABLES ......................................................................................................................................... 7 FIGURES ........................................................................................................................................ 8 APPENDIX A. EAGLE VALLEY 2016 GROUNDWATER PUMPAGE BY APPLICATION NUMBER. ........................................................................................................................ 12 APPENDIX B. EAGLE VALLEY HISTORICAL PUMPAGE BY POINT OF DIVERSION. 18 LIST OF TABLES Page Table 1. Eagle Valley historical pumpage (acre-feet) by water year. ............................................. 7 Table 2. Summary of 2016 municipal supply in addition to Eagle Valley groundwater by basin of origin. .............................................................................................................................................. 7 Table 3. Summary of 2016 Eagle Valley distributions by basin delivery. ..................................... 7 i LIST OF FIGURES Page Figure 1. Eagle Valley (Hydrographic Basin 8-104) physiographic map. ..................................... 8 Figure 2. Eagle Valley water level measurement sites. .................................................................. 9 Figure 3. Eagle Valley historical pumpage by manner of use. ..................................................... 10 Figure 4. Percentage of 2016 groundwater pumpage by manner of use. ...................................... 10 Figure 5. Comparison between 2016 groundwater commitments and estimated pumpage. ........ 11 ii ABSTRACT This inventory represents the status and use of all permitted, certificated, claims of vested right groundwater rights, and exempt domestic wells located within Eagle Valley, Hydrographic Basin 8-104, for water year 2016 (October 1, 2015 through September 30, 2016). Also included are summary graphs and additional data associated with basin transfers, aquifer storage, use of effluent, streamflow measurements, and depth to groundwater. The data presented are valid for the period of this report and may vary from previously published figures as water rights within the basin are subject to administrative action, such as certification, cancellation, forfeiture or withdrawal on a continual basis. For water year 2016, the committed water resource totaled 9,735 acre-feet, with estimated pumpage of 4,248 acre-feet. This includes an estimated 889 acre-feet pumped from exempt domestic wells. Municipal was the largest manner of use within Eagle Valley. For water year 2016, appropriations for municipal totaled 6,810 acre-feet, with pumpage of 3,190 acre-feet. The second largest manner of use was pumping by exempt domestic wells. 1 HYDROGRAPHIC BASIN SUMMARY HYDROGRAPHIC BASIN NUMBER 104, REGION 8 HYDROGRAPHIC BASIN NAME EAGLE VALLEY COUNTIES CARSON CITY, DOUGLAS, WASHOE MAJOR COMMUNITIES CARSON CITY DESIGNATED YES DENIALS BASED UPON WATER AVAILABILITY COMMERCIAL, INDUSTRIAL, IRRIGATION, QUASI- MUNICIPAL, RECREATION, OTHER GROUNDWATER LEVEL MEASUREMENTS NDWR & USGS, CARSON CITY PUMPAGE INVENTORY, ACRE-FEET IN 2016 4,2481 STATE ENGINEER’S ORDERS NO. 424 – DESIGNATION DATE: FEBRUARY 23, 1972 NO. 874 – EXTENDED DESIGNATION DATE: JULY 29, 1985 NO. 1119 – DESIGNATION AND PREFERRED USE DATE: DECEMBER 7, 1995 NO. 1140 – DROUGHT CONDITIONS PUMPING FLEXIBILITY DATE: JANUARY 27, 1998 NO. 1202 – DOMESTIC WELL CREDIT DATE: MAY 26, 2009 COMMITTED GROUNDWATER RESOURCE2: 9,735 ACRE-FEET DATE: DECEMBER 2017 IRRIGATION……………...390 COMMERCIAL……...50 STOCKWATER……..7 QUASI-MUNICIPAL……...313 MUNICIPAL…………6,810 INDUSTRIAL……….2 ENVIRONMENTAL………384 DOMESTIC…………..1,778 OTHER……………....2 1 Includes pumpage by exempt domestic wells, as defined by NRS 534.013. 2 Committed groundwater resource data are accurate for December 2017. Manner of use category totals vary over time, as rights are not necessarily static. Rights may be subject to change applications, certification, withdrawals, forfeiture and cancellations; each of these circumstances could affect the duty, diversion rate and acreage associated with a given right. The value associated with each manner of use category does not include those portions that have been relinquished in support of domestic wells. A query of the NDWR Well Log Database indicates that 889 domestic wells existed in the basin during water year 2016. The committed domestic water resource is considered to be 2 acre-feet per domestic well, or 1,778 acre-feet annually. 2 PURPOSE AND SCOPE The primary purpose of this report is to inventory all of the groundwater resources allocated and described by the Office of the State Engineer, Nevada Division of Water Resources (NDWR), and to estimate the amount of groundwater pumped within Eagle Valley, Hydrographic Basin 8-104, for the water year beginning October 1, 2015 and ending September 30, 2016 (water year 2016). This report estimates the amount of groundwater pumped under the permits and certificates issued by the State Engineer, claims of vested right, and the amount pumped by exempt domestic wells within the basin. DESCRIPTION OF THE STUDY AREA Eagle Valley is located in west central Nevada. This basin occupies approximately 71 square miles, the majority of which is in Carson City County; small portions of the basin extend into Douglas and Washoe Counties. Adjacent hydrographic basins are Lake Tahoe Basin (6-090) to the west, Washoe Valley (6-089) to the north, Dayton Valley (8-103) to the east; and Carson Valley (8-105) to the south (Figure 1). The exterior boundary of Eagle Valley is as described by Designation Order 424, issued by the Nevada State Engineer on February 23, 1972, and by Designation Order 874, issued on July 29, 1985. Eagle Valley is bounded on the west by the Carson Range of the Sierra Nevada, which is the primary watershed for the basin. The Virginia Range forms the north boundary, and Prison Hill borders the basin to the southeast; a low ridge extending from the Virginia Range south to Prison Hill forms the eastern boundary. The southern boundary is formed by a low alluvial rise and intermittent hills separating Eagle Valley from Carson Valley. The U.S. Geological Survey (USGS) operates six stream gaging stations in Eagle Valley (see Figure 1). Stations #10310485, #10310500, and #10310518 measure streamflow along Clear Creek. Stations #10311100, #10311200, and #10310600 measure streamflow along Kings Canyon, Ash Canyon, and Voltaire Canyon Creeks, respectively. Data from these gages are maintained on the USGS website at http://nevada.usgs.gov/. GROUNDWATER LEVELS Depths to groundwater in Eagle Valley are measured on a periodic basis by multiple agencies at the following sites (Figure 2): 104 N15 E19 01DDDD2 104 N15 E19 07CBBB1 104 N15 E19 12AADA1 104 N15 E19 12ABCC1 104 N15 E19 12ABCC2 104 N15 E19 12ABCC3 104 N15 E19 12ABCC4 104 N15 E19 12ABCC5 104 N15 E19 12ABCC6 104 N15 E19 12ACAB1 104 N15 E19 12ACAB2 104 N15 E19 12ACAB3 104 N15 E19 12ACAB4 104 N15 E19 12ACBB1 104 N15 E19 12ACBB2 104 N15 E19 12ACBB3 104 N15 E19 12ACBB4 104 N15 E19 12ADAA1 104 N15 E19 12DADD1 104 N15 E19 13ADDD1 104 N15 E20 02CACC1 104 N15 E20 04DBDD1 104 N15 E20 04DBDD2 104 N15 E20 05BBCA1 104 N15 E20 05BBCA2 104 N15 E20 06DDAD1 104 N15 E20 07BADC1 3 104 N15 E20 07BBAB1 104 N15 E20 07DDBB1 104 N15 E20 15BDBA1 104 N15 E20 16BDBB1 104 N15 E20 17AADB1 104 N15 E20 17CBBA1 104 N15 E20 18BDDA1 104 N15 E20 29DAAB1 104 N15 E20 32BDAA1 104 N15 E20 33BDBC1 104 N15 E20 33CBAB1 104 N16 E20 31DBCC1 104 N16 E20 33CCDD1 The water level data and a hydrograph for each site are available from the Water Level Data page of the NDWR website (http://water.nv.gov/data/waterlevel/). Data retrievals are organized by hydrographic basin. In addition to the sites above, the USGS monitors a network of wells whose data are available directly from their website (http://nevada.usgs.gov). METHODS TO ESTIMATE PUMPAGE This report estimates the amount of groundwater pumped under claims of vested rights and the permits and certificates issued by the State Engineer, as well as the amount pumped by exempt domestic wells in the valley. Table 1 and Figure 3 show historical pumpage by manner of use; Figure 4 shows percentage of groundwater pumped by manner of use; and Figure 5 compares groundwater appropriations and pumpage by manner of use. The following methods were used to arrive at the estimated pumpage: • Where totalizing meters were in place, meter readings